Natural radioactivity concentrations and dose assessment in coastal sediments along the East Coast of Tamilnadu, India with statistical approach

Devanesan, E.; Chandramohan, J.; Senthilkumar, G.; Harikrishnan, N.; Gandhi, M. Suresh; Kolekar, Sanjay S.; Ravisankar, R.

doi:10.1016/j.chnaes.2019.06.001

Cited by 15 publications

(20 citation statements)

References 25 publications

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“…Moreover, the mean 238 U activity value of 34.64 ± 1.04 Bq/kg for sediment samples collected from Gosong Beach was slightly lower than the UNSCEAR global average value of 35 Bq/kg (UNSCEAR, 2000). These values were higher than those reported in a study from Tamilnadu, India (Devanesan et al, 2020;Harikrishnan et al, 2018) but lower than those from a study conducted in Ras Tanura, Saudi Arabia (El-Taher & Madkour, 2011).…”

Section: Activity Concentrations Of 238 U 232 Th and 40 K In The Sedi...contrasting

confidence: 78%

“…The gamma dose absorbed at a distance of 1 meter from the sediment of natural radionuclides ( 238 U, 232 Th, and 40 K) was calculated according to guidelines provided by UNSCEAR (Devanesan et al, 2020;Harikrishnan et al, 2018;Maxwell et al, 2020;Ravisankar et al, 2015;Saleh et al, 2013;Sivakumar et al, 2014;SureshGandhi et al, 2014;Ugbede, 2020). The conversion factors used to calculate the absorbed gamma dose rate (DR) per unit of activity (Bq/kg) were 0.462 nGy/h for 238 U, 0.604 nGy/h for 232 Th, and 0.042 nGy/h for 40 K. The calculation is presented as follows:…”

Section: Estimation Of Absorbed Dose Ratementioning

confidence: 99%

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Natural Radionuclides on Surface Sediment Gosong Beach on the West Coast of Kalimantan Island and Associated Radiation Indices

Makmur,

Untara,

Prihatiningsih

et al. 2024

Preprint

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Following up with radiological parameter analysis, gamma spectrometry was used to assess the specific activity of 238U, 232Th, and 40K in sediment samples collected at Gosong Beach, on the west coast of Kalimantan Island, Indonesia. Except for 40K, the mean activity levels of 238U, 232Th, and 40K were within the range of the global average. However, the radiological effects of radionuclides at Gosong Beach were found to be safe and no health hazards for the population of Gosong Beach, except for the annual gonadal dose equivalence, which was found to be slightly higher than the global average.

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Section: Activity Concentrations Of 238 U 232 Th and 40 K In The Sedi...contrasting

confidence: 78%

Section: Estimation Of Absorbed Dose Ratementioning

confidence: 99%

Natural Radionuclides on Surface Sediment Gosong Beach on the West Coast of Kalimantan Island and Associated Radiation Indices

Makmur,

Untara,

Prihatiningsih

et al. 2024

Preprint

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“…The natural radioactivity analysis of the coastline plays a significant role due to this richness. While there are plenty of research on the natural radioactivity levels of the coastline and their doses in various countries and regions of the world, very few studies have been conducted in Türkiye. , …”

Section: Introductionmentioning

confidence: 99%

“…While there are plenty of research on the natural radioactivity levels of the coastline and their doses in various countries and regions of the world, very few studies have been conducted in Turkiye. 19,20 The present study was carried out to reveal the natural radioactivity levels of the beach sands of Cleopatra Beach and Damlatas Beach, to compute radiological parameters of excess lifetime cancer risk, radiation risk, radium equivalent activity, dose rates, and annual gonadal dose equivalent. The study also aims to interpret the impacts of these beaches on human health by considering the results and the average values reported for other places.…”

Section: ■ Introductionmentioning

confidence: 99%

Natural Radioactivity Levels of the Beach Sands of Cleopatra Beach and Damlatas Beach (Türkiye) and Their Impact on Human Health

Unal,

Yalcin,

Bilge Ocak

2023

ACS Omega

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HPGe γ spectrometry method was used to measure the natural radioactivity levels ( 40 K, 232 Th, and 226 Ra) of the beach sand samples from Cleopatra Beach and Damlatas Beach in Antalya (Turkiye). The mean 40 K, 232 Th, and 226 Ra radioactivity levels of the studied samples were calculated as 276.88 ± 17.24, 25.04 ± 2.88, and 17.06 ± 1.68 Bq/kg, respectively. Being below the radiation limits, these values indicate no risk in terms of public health. Moreover, the radiological risk parameters, such as excess lifetime cancer risk, radium equivalent activity (Ra eq ), absorbed γ dose rate (D), annual effective dose equivalent (Ea ed ), γ index (I γ ), internal radiation hazard index (H in ), and external radiation hazard index (H ex ), were calculated. The values of all of these parameters were found to be below the internationally accepted radiation limit values. In addition, distribution maps showing the radiological situation of the region were generated although they did not pose a hazard to public health. No results were found in the analysis processes related to artificial radioactivity.

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“…Human exposure to natural radiation from building materials is both internal and external. The external exposure is caused by gamma radiation that is released from the building material as a consequence of the radioactive decay of the natural radionuclides present in them while the internal exposure is mainly caused by alpha-particle due to inhalation of radon daughters from the decay of radium-226 which is released from building materials to indoor air [7,8]. Long time exposure to nuclear particles emissions from building materials may lead to several health issues [9].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Excess Gamma Dose Exposure Level in Typical Nigeria Commercial Building Materials Distribution Outlets

Owolabi

Alafe

et al. 2021

J. Nig. Soc. Phys. Sci.

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The gamma dose rate exposure levels from different brands of building materials at commercial distribution stores/shops in two major cities in Ondo State, Nigeria, were measured using a well calibrated Inspector 1000 scintillator detector. The results showed that the different brands of building materials which are Corrugated iron sheet, Aluminum roofing sheets, Conduit pipes, Paints, Cement, PVC pipes, Wash hand basin, Bath tub, Water closet, Kitchen zinc, Asbestos, Floor tiles, Wall tiles, Bullet proof door, Binding wire, rings and rods, Red bricks, Galvanized pipes, Copper pipes, Water tanks contributed excess annual effective doses of 0.332 mSv/y and 0.311mSv/y to store keepers in Ikare Akoko and Akure cities respectively. The indoor and outdoor annual effective dose of each of the investigated two cities are correlated using simple linear regression equations. The results of the modeling and experiment show that annual effective dose received by the occupants of these shops/stores was about 12 % higher than what could be received in a typical natural radiation environment in the two cities because the building materials acts as a source of radiation indoor. The research indicated that the typical habit of using poorly ventilated and confined space as stores/shops by the sales men might subject them to internal exposure through inhalation of radon gas and its short-lived decay products. Implementation of the developed equations would definitely promote rapid determination of outdoor annual effective dose through indoor annual effective dose and ultimately save time and other valuable resources.

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Natural radioactivity concentrations and dose assessment in coastal sediments along the East Coast of Tamilnadu, India with statistical approach

Cited by 15 publications

References 25 publications

Natural Radionuclides on Surface Sediment Gosong Beach on the West Coast of Kalimantan Island and Associated Radiation Indices

Natural Radionuclides on Surface Sediment Gosong Beach on the West Coast of Kalimantan Island and Associated Radiation Indices

Natural Radioactivity Levels of the Beach Sands of Cleopatra Beach and Damlatas Beach (Türkiye) and Their Impact on Human Health

Assessment of Excess Gamma Dose Exposure Level in Typical Nigeria Commercial Building Materials Distribution Outlets

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